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PEM (EY)
takaaki.yokozawa - 12:00 Thursday 12 June 2025 (34171) Print this report
Incereasing the humidity at the EYV area
Ususally, we didn't take care so much for the humidity, but I noticed the humidity of the EYV area exceeded more than 70 %, and increased day by day.
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shinji.miyoki - 9:16 Friday 13 June 2025 (34179) Print this report

We will put a defumidifier that generates 390W of heat in the EYV room if approved. We will also decrease the heater power by 300W in the Sunrise heater.

shinji.miyoki - 12:03 Monday 16 June 2025 (34233) Print this report

[Hayakawa, Sawada, ...]

A defumidifier whose power was 390W was put in the EYV area. To compensate the heat generation in the EYV room, I reduced the Sunrise heater power from 900W to 600W by 300W.

The following is the detailed process,

  • 09:39 Mine IN
  • ... No record
  • 10:09 Yend1F IN
  • 10:11 Yend1F OUT
  • 10:15 EYV IN
  • 10:23 EYV OUT
  • 10:27 Yend1F IN
  • 10:30 Yend1F OUT
  • 10:44 Center IN
  • 10:51 Center OUT
  • 10:54 Mine OUT
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shinji.miyoki - 16:35 Monday 16 June 2025 (34243) Print this report

I turned off the Sunrise heater because the temperature in EYV increased by 0.2 °C for 2 hours after turning on the defumidifier.

shinji.miyoki - 22:13 Monday 16 June 2025 (34254) Print this report

Fig.1 shows the temperature changes in the EYV and the humidity changes.

The temperature seemed to recover, and the humidity reduced to ~ 62 % level.

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